Description

A sample of 900 Californian households#'

Format

A dataframe containing:

• idcase: id,

• depvar: heating system, one of gc (gas central), gr (gas room), ec (electric central), er (electric room), hp (heat pump),

• ic.z: installation cost for heating system z (defined for the 5 heating systems),

• oc.z: annual operating cost for heating system z (defined for the 5 heating systems),

• pb.z: ratio oc.z/ic.z ,

• income: annual income of the household,

• agehed: age of the household head

• rooms: numbers of rooms in the house,

Source

Kenneth Train's home page.